I purchased the rough for this standard round tourmaline as a bit of cuprian color, but my spectrometer said no copper. It is still interesting, even if it has moderate inclusion that inhibit the flash. They are at least spread evenly threw out the gemstone. Now why is it still interesting, because it has a pink eye at the culet and a thick pastel blue rind. By tilting the gemstone you can spread a little pink into the blue world and come up with a touch of purple, an eternal quest. This demoted and modest gemstone weighs .86 carats.